Fig$-1$ Network Topology

a$)$ Ethernet Cables

There are three types of Ethernet cables.

$1)$ Straight$-$through cable.

$2)$ Crossover cable.

$3)$ Rolled cable.

$1)$ Straight$-$Through Cables: used to connect.

i$.$ Host to switch or hub.

ii$.$ Router to switch or hub.

Four wires are used in straight$-$through cable to connect Ethernet devices. It is relatively simple to create.

The figure below shows the four wires used in a straight$-$through Ethernet cable.

$2)$ Crossover Cable: used to connect.

i$.$ Switch to switch

ii$.$ Hub to hub

iii. Host to host

iv$.$ Hub to switch

v$.$ Router direct to host

The same four wires are used in this cable as in the straight$-$through cable; we just connect different pins together. The figure below shows how the four wires are used in a crossover Ethernet cable.

$3)$ Rolled Cable: used to connect a host to a router console serial communication.

Eight wires are used to send information. The figure below shows the eight wires used in a

rolled cable.

$$ Identify the three types of cables in the lab.

$$ What does each wire in the Ethernet cable do$?$

Procedure

$1.$ Add local laptop, remote laptop, cisco $2960$ switches and cisco $2811$ routers.

$2.$ Rename each network component according to Fig. $1$ by selecting the default name of each

component through a right$-$click.

$3.$ Establish a connection between the RS $232$ port on the local laptop and the console port on the

switch using the proper cable.

$4.$ Establish a connection between FastEthernet$0/1$ port on the switch and the FastEthernet$0/0$ port

on router using the proper cable.

$5.$ Establish a connection between FastEthernet$0/1$ port on the router and the FastEthernet$0$ port on

remote laptop using the proper cable.

$6.$ Assign IP address to remote laptop from class B$.$

IP Address Range

FACULTY OF ENGINEERING AND APPLIED SCIENCE

ELECTRONIC SYSTEMS ENGINEERING $($ESE$)$

Class Address Range

$1.$ A $0\mathrm{.}0\mathrm{.}0\mathrm{.}0$ to $127\mathrm{.}255\mathrm{.}255\mathrm{.}255$

$2.$ B $128\mathrm{.}0\mathrm{.}0\mathrm{.}0$ to $191\mathrm{.}255\mathrm{.}255\mathrm{.}255$

$3.$ C $192\mathrm{.}0\mathrm{.}0\mathrm{.}0$ to $223\mathrm{.}255\mathrm{.}255\mathrm{.}255$

$7.$ Configure switch through local laptop.

$$ Right click on local laptop$->$Desktop$->$go to terminal$->$Ok$->$Enter

$$ Configure Switch hostname as LOCAL$-$SWITCH

Switch$>$enable

Switch#config terminal Switch$($config$)$#hostname LOCAL$-$SWITCH

$$ Configure the message of the day as "Unauthorized access is forbidden.$$

Switch$($config$)$#banner motd # Unauthorized access is forbidden#

$$ Configure the password for privileged mode access as "cisco". The password must be md$5$ encryp ted.

Switch$($config$)$#enable secret cisco

$$ Configure password encryption on the switch using the global configuration command.

Switch$($config$)$#service password$-$encryption

$$ Configure CONSOLE access with the following settings: $-$ Login enabled

$-$ Password : ciscoconsole

$-$ History size : $15$ commands $-$ Timeout : $6\text{'}45\text{'}\text{'}$

$-$ Synchronous logging

Switch$($config$)$#line con $0$ Switch$($config$-$line$)$#password ciscoconsole Switch$($config$-$line$)$#logging synchronous Switch$($config$-$line$)$#login Switch$($config$-$line$)$#history size $15$

Switch$($config$-$line$)$#exec$-$timeout $645$ Switch$($config$-$line$)$#exit

$$ Configure TELNET access with the following settings: $-$ Login enabled

$-$ Password : ciscotelnet

$-$ History size: $15$ commands $-$ Timeout: $8\text{'}20\text{'}\text{'}$

$-$ Synchronous logging

Switch$($config$)$#line vty $015$

Switch$($config$-$line$)$#exec$-$timeout $820$ Switch$($config$-$line$)$#password ciscotelnet Switch$($config$-$line$)$#logging synchronous Switch$($config$-$line$)$#login Switch$($config$-$line$)$#history size $15$ Switch$($config$-$line$)$#exit

$$ Configure the IP address of the switch as $192\mathrm{.}168\mathrm{.}1\mathrm{.}2/24$ and its default gateway IP $(192\mathrm{.}168\mathrm{.}1\mathrm{.}1).$

Switch$($config$)$#interface Vlan$1$

Switch$($config$-$if$)$#ip address $192\mathrm{.}168\mathrm{.}1\mathrm{.}2255\mathrm{.}255\mathrm{.}255\mathrm{.}0$ Switch$($config$-$if$)$#ip default$-$gateway $192\mathrm{.}168\mathrm{.}1\mathrm{.}1$ Switch$($config$)$#interface Vlan$1$

Switch$($config$-$if$)$#no shutdown

Switch$($config$-$if$)$#exit

Switch$($config$)$#

$$ Close the terminal and reopen it$.$ The system will prompt for the console password. Subsequently, enable the switch and display interface details as added in the preceding step.

$8.$ Configure router.

$$ Right click on router$->$go to Command Line Interface $($CLI$)->$Enter.

$$ Configure the IP address of the router port FastEthernet$0/1($Router and Remote laptop$)$ as $172\mathrm{.}16\mathrm{.}1\mathrm{.}1/24$ and FastEthernet$0/1($Route and Switch$)$ as $192\mathrm{.}168\mathrm{.}1\mathrm{.}1/24$

Router$>$enable

Router#config terminal

Enter configuration commands, one per line. End with CNTL$/$Z$.$ Router$($config$)$#interface FastEthernet$0/1$

Router$($config$-$if$)$#ip address $172\mathrm{.}16\mathrm{.}1\mathrm{.}1255\mathrm{.}255\mathrm{.}255\mathrm{.}0$ Router$($config$-$if$)$#no shutdown

Router$($config$-$if$)$#exit

Router$($config$)$#

Router$($config$)$# Router$($config$)$#

Router#config t

Enter configuration commands, one per line. End with CNTL$/$Z$.$ Router$($config$)$#interface FastEthernet$0/0$

Router$($config$-$if$)$#ip address $192\mathrm{.}168\mathrm{.}1\mathrm{.}1255\mathrm{.}255\mathrm{.}255\mathrm{.}0$ Router$($config$-$if$)$#no shutdown

Router$($config$-$if$)$#exit Router$($config$)$#

$9.$ Test telnet connectivity from the Remote Laptop using the telnet client.

$$ Right click on remote laptop$->$Desktop$->$go to Telnet$/$SSH client$->$select te